Streamwood's housing stock centers on a median build year of 1981, and a lot of those garages still have the torsion spring that went up with the house. Steel fatigues whether or not a door gets used - a spring wound to the same tension for over forty years is well past any reasonable service life, and the usual way it tells you is a bang, not a warning. Some owners get a slow sag instead: the door starts to hang crooked, the opener strains, and a cable starts to fray where it rides the drum. On older torsion setups we still see one-piece doors with side-mounted hardware, a layout that's become uncommon on newer builds and that takes different spring sizing than what a big-box parts counter stocks. If your opener is lifting the door but struggling on the last foot, that's usually the spring giving out, not the motor.